Patent US6428558B1 successfully refreshed from Google Patents.
US6428558B1
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Aneurysm embolization device
Assignee: Codman and Shurtleff Inc
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Filing: 2000-02-16
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Granted: 2002-08-06
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Expires: 2020-02-16
Abstract
Abstract An aneurysm embolization device which may be used to occlude a blood vessel or aneurysm. The device has a plurality of support struts which form a substantially ellipsoidal shape. The support struts are preferably formed from a nickel-titanium alloy, such as nitinol, which has superelastic characteristics. A mesh sleeve is disposed over the support struts. The mesh sleeve is preferably formed of a thrombogenic material, such as polyurethane, so as to encourage the formation of blood clots and scar tissue to permanently occlude the vessel.
Inventors
- 👤 Donald K. Jones
- 👤 Vladimir Mitelberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:25
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/12; A61B17/12022; A61B17/12099; A61B17/12109; A61B17/12113; A61B17/12131; A61B17/1214; A61B17/1215; A61B17/12168; A61B17/12172; A61B17/12177; A61B2017/1205; A61B90/00; A61B90/39
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
163 words
An embolization device deployment system comprising: a catheter having a proximal end, a distal end, and a lumen extending throughout the length of the catheter; an embolization device comprising a plurality of arcuate support struts, said support struts being connected to each other to form a structure of a substantially ellipsoidal configuration, said embolization device further comprising a mesh sleeve disposed over and attached to said support struts, said embolization device being slidingly disposed within the lumen at the distal end of the catheter; a hub having a lumen extending therethrough, said hub being mounted on the proximal end of the catheter and the lumen of the hub communicating with the lumen of the catheter; and, a pusher mechanism disposed through the lumen of the hub and the lumen of the catheter, said pusher mechanism being used to displace said embolization device from within the lumen at the distal end of the catheter to thereby deploy said embolization device within a blood vessel.
Claim 2
Dependent Claim
163 words
An embolization device deployment system comprising: a catheter having a proximal end, a distal end, and a lumen extending throughout the length of the catheter; an embolization device comprising a plurality of arcuate support struts, said support struts being connected to each other to form a structure of a substantially ellipsoidal configuration, said embolization device further comprising a mesh sleeve disposed over and attached to said support struts, said embolization device being slidingly disposed within the lumen at the distal end of the catheter; a hub having a lumen extending therethrough, said hub being mounted on the proximal end of the catheter and the lumen of the hub communicating with the lumen of the catheter; and, a pusher mechanism disposed through the lumen of the hub and the lumen of the catheter, said pusher mechanism being used to displace said embolization device from within the lumen at the distal end of the catheter to thereby deploy said embolization device within a blood vessel.
Claim 3
Dependent Claim
41 words
An embolization device deployment system as defined in claim 1 , wherein said support struts have a proximal end and a distal end, said supports struts being attached at least one end and biased outwardly to form a substantially ellipsoidal structure.
Claim 4
Dependent Claim
31 words
An embolization device deployment system as defined in claim 2 , wherein said support struts are formed from a superelastic alloy and said mesh sleeve is formed from a thrombogenic material.
Claim 5
Dependent Claim
20 words
An embolization device deployment system as defined in claim 3 , wherein said alloy is formed from nickel and titanium.
Claim 6
Dependent Claim
28 words
An embolization device deployment system as defined in claim 4 , wherein said alloy is comprised of at least about 51% nickel and at least about 44% titanium.
Claim 7
Dependent Claim
41 words
An embolization device deployment system as defined in claim 3 , wherein said thrombogenic material is comprised of polyurethane, said support struts are coated with a layer of polyurethane material, and said mesh sleeve is heat fused to said support struts.
Claim 8
Dependent Claim
21 words
An embolization device deployment system as defined in claim 6 , wherein said layer of polyurethane material includes a radiopaque compound.
Claim 9
Dependent Claim
19 words
An embolization device deployment system as defined in claim 7 , wherein said radiopaque compound is comprised of tantalum.
Claim 10
Dependent Claim
177 words
An embolization device deployment system comprising: a catheter having a proximal end, a distal end, and a lumen extending throughout the length of the catheter; an embolization device comprising a plurality of arcuate support struts, said support struts having a proximal end and a distal end, said supports struts being attached at the proximal and distal ends and biased outwardly to form a substantially ellipsoidal structure, said embolization device further comprising a mesh sleeve disposed over and attached to said support struts, said embolization device being slidingly disposed within the lumen of the distal end of the catheter; a hub having a lumen extending therethrough, said hub being mounted on the proximal end of the catheter and the lumen of the hub communicating with the lumen of the catheter; and, a pusher mechanism disposed through the lumen of the hub and the lumen of the catheter, said pusher mechanism being used to displace said embolization device from within the lumen at the distal end of the catheter to thereby deploy said embolization device within a blood vessel.
Claim 11
Dependent Claim
177 words
An embolization device deployment system comprising: a catheter having a proximal end, a distal end, and a lumen extending throughout the length of the catheter; an embolization device comprising a plurality of arcuate support struts, said support struts having a proximal end and a distal end, said supports struts being attached at the proximal and distal ends and biased outwardly to form a substantially ellipsoidal structure, said embolization device further comprising a mesh sleeve disposed over and attached to said support struts, said embolization device being slidingly disposed within the lumen of the distal end of the catheter; a hub having a lumen extending therethrough, said hub being mounted on the proximal end of the catheter and the lumen of the hub communicating with the lumen of the catheter; and, a pusher mechanism disposed through the lumen of the hub and the lumen of the catheter, said pusher mechanism being used to displace said embolization device from within the lumen at the distal end of the catheter to thereby deploy said embolization device within a blood vessel.
Claim 12
Dependent Claim
31 words
An embolization device deployment system as defined in claim 9 , wherein said support struts are formed from a superelastic alloy and said mesh sleeve is formed from a thrombogenic material.
Claim 13
Dependent Claim
20 words
An embolization device deployment system as defined in claim 10 , wherein said alloy is comprised of nickel and titanium.
Claim 14
Dependent Claim
28 words
An embolization device deployment system as defined in claim 11 , wherein said alloy is comprised of at least about 51% nickel and at least about 44% titanium.
Claim 15
Dependent Claim
41 words
An embolization device deployment system as defined in claim 10 , wherein said thrombogenic material is comprised of polyurethane, said support struts are coated with a layer of polyurethane material, and said mesh sleeve is heat fused to said support struts.
Claim 16
Dependent Claim
21 words
An embolization device deployment system as defined in claim 13 , wherein said layer of polyurethane material includes a radiopaque compound.
Claim 17
Dependent Claim
19 words
An embolization device deployment system as defined in claim 14 , wherein said radiopaque compound is comprised of tantalum.
Claim 18
Dependent Claim
224 words
An embolization device deployment system comprising: a catheter having a proximal end, a distal end, and a lumen extending throughout the length of the catheter; an embolization device comprising a plurality of arcuate support struts, said support struts being comprised of a tube, said tube having a tubular wall and a lumen extending therethrough, said tube further having a proximal end, a distal end, and a plurality of longitudinal cuts through the wall of the tube, said cuts extending from a point near the proximal end of the tube and extending to a point near the distal end of the tube, said support struts being biased outwardly to form a substantially ellipsoidal structure, said embolization device further comprising a mesh sleeve disposed over and attached to said support struts, said embolization device being slidingly disposed within the lumen of the distal end of the catheter; a hub having a lumen extending therethrough, said hub being mounted on the proximal end of the catheter and the lumen of the hub communicating with the lumen of the catheter; and, a pusher mechanism disposed through the lumen of the hub and the lumen of the catheter, said pusher mechanism being used to displace said embolization device from within the lumen at the distal end of the catheter to thereby deploy said embolization device within a blood vessel.
Claim 19
Dependent Claim
224 words
An embolization device deployment system comprising: a catheter having a proximal end, a distal end, and a lumen extending throughout the length of the catheter; an embolization device comprising a plurality of arcuate support struts, said support struts being comprised of a tube, said tube having a tubular wall and a lumen extending therethrough, said tube further having a proximal end, a distal end, and a plurality of longitudinal cuts through the wall of the tube, said cuts extending from a point near the proximal end of the tube and extending to a point near the distal end of the tube, said support struts being biased outwardly to form a substantially ellipsoidal structure, said embolization device further comprising a mesh sleeve disposed over and attached to said support struts, said embolization device being slidingly disposed within the lumen of the distal end of the catheter; a hub having a lumen extending therethrough, said hub being mounted on the proximal end of the catheter and the lumen of the hub communicating with the lumen of the catheter; and, a pusher mechanism disposed through the lumen of the hub and the lumen of the catheter, said pusher mechanism being used to displace said embolization device from within the lumen at the distal end of the catheter to thereby deploy said embolization device within a blood vessel.
Claim 20
Dependent Claim
31 words
An embolization device deployment system as defined in claim 16 , wherein said support struts are formed from a superelastic alloy and said mesh sleeve is formed from a thrombogenic material.
Claim 21
Dependent Claim
20 words
An embolization device deployment system as defined in claim 17 , wherein said alloy is comprised of nickel and titanium.
Claim 22
Dependent Claim
28 words
An embolization device deployment system as defined in claim 18 , wherein said alloy is comprised of at least about 51% nickel and at least about 44% titanium.
Claim 23
Dependent Claim
41 words
An embolization device deployment system as defined in claim 17 , wherein said thrombogenic material is comprised of polyurethane, said support struts are coated with a layer of polyurethane material, and said mesh sleeve is heat fused to said support struts.
Claim 24
Dependent Claim
21 words
An embolization device deployment system as defined in claim 20 , wherein said layer of polyurethane material includes a radiopaque compound.
Claim 25
Dependent Claim
19 words
An embolization device deployment system as defined in claim 21 , wherein said radiopaque compound is comprised of tantalum.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2005-08-05 | 2006-02-04 | 2006-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2009-08-05 | 2010-02-04 | 2010-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2013-08-05 | 2014-02-04 | 2014-08-06 | $7700.00 | Window Closed / Lapsed |